Firstly sub39h is not worth a reply.
Basicaly there were a number A3 cabs throught europe that had a problem with the hood wearing, the hood looks as if it was about 20 years old, there are a number of spots where the outer layer has worn down to the second layer & it as also has become very badly marked. Obviously the hood is rubing in places when being lowered & raised but Audi could not figure out why it was only happening on some A3's (I will stress that it only on a few of the earlier A3's those built in late 2008-2009 but it was spread throughout the whole of europe). It obviously spoilt the look of the car when the hood was raised as the wear was vary noticeable. (No need for stupid comments about the A3 Cab, love mine & would most certainly buy another. Frequently wonder if the same comments would be made if it was an S3 cab). Give Audi there due it has taken almost a year for them to resolve the problem & I had a recall on mine within days of the problem being resolved.